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Science 20 October 1978:
Vol. 202. no. 4365, pp. 315 - 318
DOI: 10.1126/science.694536
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Articles

Science, Vol 202, Issue 4365, 315-318
Copyright © 1978 by American Association for the Advancement of Science

articles

The attention operating characteristic: examples from visual search

G Sperling and MJ Melchner

Even in the absence of eye movements, we show that subjects are able, upon instruction, to selectively attend to certain kinds of targets and parts of visual arrays. The major mechanism of altering attention is the switching of attention from trial to trial, although intermediate states of shared attention do occur. Attention operating characteristics are shown to be a useful way of describing such data and of assessing the compatibility of tasks to be performed simultaneously.


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Dual task interactions due exclusively to limits in processing resources.
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